Homekit Automations are broken in iOS 16

just in case, I went through and pushed every Apple product I have to the current OS. Although they are all on auto-update, it sometimes takes several days for an update to actually occur. After doing this, rebooting each device and restarting the Home app, my automations are working again. All is my automations use Scenes rather than individual accessories. A couple of automations which use shortcuts are still struggling to work, but that is due to a different issue related to device names and a fix is in the works.

For me worked restoring automations from backup through the Controller app. Deleted and restored. From that time automations worked 100% of the time.

5 days further and not one single failure or misbehavior in any of the automations.

Fresh install was the way to go for me.

ok it’s a lot of work but I’m so glad I finally did it.

So, when I signed out of iCloud and back in, (hate doing that) it did seem to fix my time of day automations. What do you mean make any changes? Like adding or deleting a new accessory or scene?

The only thing that works consistently for me is I restart my Apple TV 4K every week or so, then everything keeps running smoothly. After over a week seems like I run into issues.

Sure you tried creating rules in the Eve app for time of day automations? Works 100% here.

Removing the automation in Homekit and adding them again in Shortcuts fixed it for me. Thanks!

I can verify that setting up automations linked to SCENES rather than individual lights worked just fine.

This also worked for me. Sometimes we look for a solution in one operating system when the issue is in another. As far as I can tell this is only an issue with tvOS16 as before I did the Home Hub off/on my automations didn't work even though my iPad is not using iPadOS16 and my Macs aren't using Ventura and they all worked before tvOS16 and none worked after my AppleTV automatically updated.

Anyway, all is good now.

I also logged off on my AppleTV, reboot and login again. A whole procedure started up to connect my iPhone and and my AppleTV to Homekit as well. Even it asked where the Hub was standing (for me in the living room)

Lets see what happen. For me it was problem that our 2 iPhones sometimes left home without leaving and still connected to the WiFi (same network as the AppleTV).

Connecting the AppleTV by wifi instead of ethernet did not work. I have now changed the Apple TV settings to disable it as a Home Hub. An original Homepod is now the primary hub.

i have deleted all old Automations and created replacements. So far they seem to be working.

I don't think you can estimate the size of the problem by the number of posters on this forum. Other Apple-related forums also have numerous discussions about this. In any case the Apple website does not have a dedicated Community Discussion for Homekit (I pointed this out to Apple several years ago) so users with Homekit issues might not find this forum.

An update on a solution that seems to work in my case: automations are still working after several days where I keep the Homepods playing music all night. Ironically I have created an Automation that starts playing a song late in the evening at near-zero volume and with repeat enabled.

So far tvOS 16.1 and homepodOS 16.1 are working well for me. I let my Original Homepods go to sleep (whatever that means) last night and the automations still worked.

In the release notes Apple mentions the Home app so maybe they have addressed our collective problems?

Good luck with 16.1 everyone. Note, however, that if a previous OS has corrupted your Homekit data then you might have to start again from scratch.

I think I have a pretty easy fix!

I encountered the same issue with time based motion sensing automation with the IOS 16, on 4 out of 5 time-based automations. I attempted to make several adjustments to one of the automations to no avail.

After reading the post, I upgraded my phone to 16.1.1 and then removed the 4 non-working automations. I rebuilt the automations and they seem to be working now. I say seem, because I use these automations at night to turn on lights. I changed the time on one of the rebuilt automations to include the daytime for test purposes and it worked fine. I changed it back to night time hours and expect them all to work tonight after specific times tonight.

If it doesn't work, I will log back in to hopefully amend this post.

If it doesn't work (after several days) try playing music all night on the homepod that is acting as the primary hub - if that is how your setup works. I too noticed that nighttime automations were failing and so tried this trick and it seems to work. To achieve this I have an automation that starts music playing at a very low volume late in the evening.